Question

The number of planks of dimensions $$(4$$ m $$\times 50$$ cm $$\times 20$$ cm$$)$$ that can be stored in a pit which is $$16$$ m long, $$12$$ m wide and $$4$$ m deep is

A
1900
B
1920
C
1800
D
1840

Solution

The correct option is B $$1920$$Given, number of planks of dimensions $$(4$$m $$\times 50$$ cm $$\times 20$$ cm $$)$$Volume of planks $$=lbh=400(50)20=400000$$ cm$$^3$$Volume of pits $$=1600(1200)400=768000000$$ cm$$^3$$Number of planks $$=\dfrac{786000000}{400000}=1920$$Mathematics

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